Is the word espetáculo the same in Brazilian and European Portuguese?

Yes.

The word "espetáculo" is identical in spelling, meaning, and grammar in both Brazilian and Continental Portuguese. The only difference lies in pronunciation. In Brazilian Portuguese, vowels are generally more open and clearly articulated. In Continental Portuguese, unstressed vowels tend to be "reduced" or closed, making the word sound more compressed and less rhythmic to a Brazilian ear. Additionally, following the Orthographic Agreement, the "c" was removed from the spelling in both varieties because it is silent.

Brazilian Portuguese Examples

1. O show foi um espetáculo! (The show was amazing!)
2. Ela é um espetáculo de profissional. (She is a spectacular professional.)
3. Que espetáculo de comida! (What a spectacular meal!)
4. O filme foi um espetáculo visual. (The movie was a visual spectacle.)
5. A apresentação de ontem foi um espetáculo. (Yesterday's presentation was a spectacle.)

Continental Portuguese Examples

1. O concerto foi um espetáculo! (The concert was amazing!)
2. Ela é uma profissional espetacular. (She is a spectacular professional.)
3. Que espetáculo de refeição! (What a spectacular meal!)
4. O filme foi um espetáculo visual. (The movie was a visual spectacle.)
5. A apresentação de ontem foi um espetáculo. (Yesterday's presentation was a spectacle.)